Advice from Geoffrey Pullum, when faced with people who tell you that Eskimos have multiple words for “snow”:

Stand up and tell the speaker this: C.W. Schultz-Lorentzen’s Dictionary of the West Greenlandic Eskimo Language (1927) gives just two possibly relevant roots: qanik, meaning ‘snow in the air’ or ‘snowflake’, and aput, meaning ‘snow on the ground’. Then add that you would be interested to know if the speaker can cite any more.